19727757

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{16481}}^1$

素因数の和:16513

約数の個数: 24

約数和(自身を含む): 34282560

約数和(自身を除く): 14554803

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 16481, 49443, 115367, 148329, 313139, 346101, 939417, 1038303, 2191973, 2818251, 6575919, 19727757]

約数ペア:

[(1, 19727757), (3, 6575919), (7, 2818251), (9, 2191973), (19, 1038303), (21, 939417), (57, 346101), (63, 313139), (133, 148329), (171, 115367), (399, 49443), (1197, 16481)]